The Java Application Monitor (JAMon) is a free, simple, high performance, thread safe, Java API that allows developers to easily monitor production applications. JAMon can be used to determine application performance bottlenecks, user/application interactions, and application scalability. JAMon gathers summary statistics such as hits, execution times (total, average, minimum, maximum, standard deviation), and simultaneous application requests. JAMon statistics are displayed in the sortable JAMon report.
FSHeal aims to be a general filesystem tool that can scan and report vital "defective" information about the filesystem like broken symlinks, forgotten backup files, and left-over object files, but also source files, documentation files, user documents, and so on. It will scan the filesystem without modifying anything and reporting all the data to a logfile specified by the user which can then be reviewed and actions taken accordingly.